KR20180043300A - Combination of tube sets for use with surgical gas delivery devices - Google Patents

Abstract

A coupling device for connecting a set of tubes to a trocar is disclosed, the coupling device comprising: a multi-lumen trocar with a housing having a connector; A multi-lumen tube set including a plurality of tubes arranged in parallel; A coupling including a generally cylindrical body having a first end and a second end; And a latch assembly associated with the cylindrical body of the coupling for selectively engaging the connector of the trocar housing when the coupling engages the connector, the connector extending outwardly from the housing Wherein the first end is configured to selectively engage with the coaxial flow channels of the connector of the trocar, and the second end is configured to selectively engage the coaxial flow channels of the connector of the trocar, And is adapted to be attached to the parallel tubes of the tube set.

Description

Combination of tube sets for use with surgical gas delivery devices

Cross reference of related application

This application claims priority to U.S. Provisional Patent Application No. 62 / 208,169, filed August 21, 2015, the content of which is incorporated by reference in its entirety.

Field of invention

The present invention relates to mechanical coupling, and more particularly to a coupling device for connecting a set of multi-lumen tubes to a surgical access device used during minimally invasive surgery to deliver surgical gases.

Techniques of laparoscopic or "minimally invasive" surgery are very common in performing operations such as cholecystectomy, appendectomy, hernia correction and kidney resection. Benefits of such surgeries include reduced trauma to the patient, reduced chance of infection, and reduced recovery time. These surgeries within the abdominal cavity (abdominal cavity) are routinely performed through a device known as a trocar or cannula, which facilitates the introduction of the laparoscopic instrument into the abdominal cavity of the patient.

These operations also include filling or "insufflating" the abdominal cavity with pressurized fluid, such as carbon dioxide, to produce what is referred to as pneumoperitoneum. The injection may be performed by a surgical access device (sometimes referred to as a "cannula" or "trocar") mounted to carry the injection fluid, or may be performed by a separate injection device, such as a veress needle. In order to maintain air doubling, it is desirable to introduce a surgical instrument into the air doubling without substantially losing suction gas.

During a typical laparoscopic surgery, the surgeon makes three to four small incisions, typically less than about 12 mm, which are usually made using a surgical access device, typically an individual insertion device or a suture positioned therein. After insertion, the insertion device is removed and the trocar allows insertion of surgical instruments into the abdominal cavity. Conventional trocar tubs usually provide a means for injecting a gas or the like into the abdominal cavity, so that the surgeon has an open internal space for surgery.

The trocar should provide a means of sealing between the trocar and the surgical instrument to maintain the pressure in the abdominal cavity, while at least the least freedom of movement of the surgical tool should still be allowed. Such devices may include, for example, scissors, gripping and occluding devices, wound care units, cameras, light sources and other surgical instruments. A sealing element or mechanism is typically provided on the trocar to prevent venting gases from escaping. The sealing element or device typically includes a duckbill-type valve made of a relatively flexible material to seal around the outer surface of the surgical tool through the trocar.

In addition, in laparoscopic surgery, electrocautery and other techniques (e.g., harmonic scalpels) create smoke and other debris within the surgical cavity to reduce visibility by flowing the field of view and applying a surface such as an endoscope. A variety of surgical insufflation systems and ventilation devices are known in the art.

SurgiQuest of Milford, Connecticut, USA, has developed a surgical access device or trocar for accessing a surgical cavity that has been injected without conventional mechanical sealing, and US Patent No. 7,854,724, the disclosure of which is incorporated herein by reference in its entirety Have developed a related system for providing such access devices with sufficient pressure and flow rates, as described in whole or in part.

SurgiQuest offers a multifaceted surgical gas delivery system including special functions such as ventilation for standard or special surgical access devices or other instruments such as open wards, flushing via standard or special surgical access, and recirculation and filtration of the infusion fluid Lt; RTI ID = 0.0 > and / or < / RTI > related apparatus and methods. Examples of such multi-mode systems and related devices are disclosed in U.S. Patent Application Publication No. 2002/0150101, which is incorporated herein by reference in its entirety.

Multimodal systems generally require the use of disposable filter cartridges having multiple flow passages as disclosed in U.S. Patent No. 7,976,598 and U.S. Patent Application Publication No. 2013/0231606, the entire disclosures of which are incorporated herein by reference . Such disposable filter cartridges may be installed in a multi-lumen tube that is installed in the introducer and communicates with a surgical access device or trocar, such as the device disclosed in U.S. Patent Application Publication No. 2012/0245511, the entire disclosure of which is incorporated herein by reference. .

The mechanical connection between the tube set and the surgical access device or trocar is typically a threaded connection and often requires precise alignment of the plurality of flow paths. Achieving this connection can take an excessive amount of time and may require some dexterity. A unique coupling device for detachably connecting a set of multi-lumen tubes to a surgical access device that overcomes these deficiencies is disclosed in U.S. Patent Application Publication No. 2014/0171855, which is incorporated herein by reference in its entirety do. This connection, in the form of a unique triple-lug type part, is relatively difficult to manufacture economically. It would therefore be advantageous to provide a connection device for aligning a plurality of flow channels that are easier to manufacture in a more economical manner.

The present invention relates to a new and useful coupling device for connecting a set of tubes to a trocar. More specifically, the present invention includes a multi-lumen trocar with a housing mat, wherein the housing mat includes a connector extending outwardly from the housing. The connector has a plurality of coaxial flow channels formed therein by a plurality of concentric annular walls. The apparatus further comprises a multi lumen tube set comprising a plurality of tubes arranged in parallel, and a coupling including a generally cylindrical body. The body of the coupling has a first end adapted to selectively engage the coaxial flow channels of the connector of the trocar, and a second end adapted to attach to the tubes of the tube set. The latch assembly is cooperatively associated with the cylindrical body of the coupling to selectively engage the connector of the trocar housing when the coupling engages the connector.

Preferably, the first end of the coupling body includes a plurality of concentric annular walls for engaging the connector of the trocar, each outer wall being surrounded by an O-ring seal, The second end of the coupling body includes a plurality of parallel tube components for engaging the tubes of the tube set. Further, the first end of the body of the coupling includes an inner passage, an intermediate passage surrounding the inner passage, and an outer passage surrounding the intermediate passage. The second end of the body of the coupling includes a first tube part communicating with the internal flow path at the first end of the body, a second tube part communicating with the intermediate flow path at the first end of the body, And a third tube component communicating with the external flow path at the first end of the body.

Also, a plurality of circumferentially spaced, radially outwardly extending posts are provided on the outer wall of the connector of the trocar. The latch assembly includes a pair of radially opposed spring mounting latches for selectively engaging the plurality of posts at an outer wall of the connector of the trocar housing when the coupling engages the connector.

The invention also relates to a coupling device comprising a multi-lumen trocar with a housing, the housing having a connector extending outwardly from the housing. The connector has a plurality of coaxial flow paths defined therein by a plurality of concentric annular walls, and a plurality of circumferentially spaced, radially outwardly extending posts. The apparatus also includes a multi-lumen tube set including a plurality of tubes arranged in parallel, and a coupling including a generally cylindrical body having a first end and a second end, And is configured to selectively engage the coaxial flow channels of the connector, the second end configured to attach to the tubes of the tube set. A latch assembly is associated for cooperating with the cylindrical body of the coupling, the latch assembly including a pair of radially opposed, spaced apart, radially opposed contacts for selectively engaging the connector of the trocar housing when the coupling engages the connector. And spring loaded latches. .

Preferably, the first end of the body of the coupling includes a plurality of concentric annular walls for engaging the connector of the trocar, each outer wall defining an O- The second end of the body of the coupling includes a plurality of parallel tube components for engaging the tubes of the tube set.

Each latch of the latch assembly includes an outwardly extending parallel extension that slidably engages within the openings of the cylindrical body and engages an opposing latch. In one embodiment, each extension includes an aperture that engages a corresponding post of the opposing latch. In a further embodiment, each extension includes a ratcheting tooth shape that engages a ratcheting tooth shape of the extension on the opposite latch.

The invention also relates to a coupling device comprising a multi-lumen trocar with a housing, the housing having a connector extending outwardly from the housing. The connector has a plurality of coaxial flow paths defined therein by a plurality of concentric annular walls. The apparatus also includes a multi-lumen tube set including a plurality of tubes arranged in parallel, and a coupling including a generally cylindrical body having a first end and a second end, The second end configured to attach to the parallel tubes of the set of tubes. The first end of the body of the coupling includes a plurality of concentric annular walls for engaging the connector of the trocar, each outer wall being surrounded by an O-ring seal.

Preferably, a latch assembly is operatively associated with the cylindrical body of the coupling and includes a pair of diametrically opposed spring mount latches with springs positioned between each latch assembly and the cylindrical body . The springs enable the manipulation of parallel extensions extending outwardly of each latch assembly to engage and separate from the connector and the coupling.

In one embodiment, the outer sleeve and the inner sleeve are associated with the cylindrical body of the coupling. The axial movement of the outer sleeve exposes a plurality of circumferentially disposed flexible fingers on the leading surface of the inner sleeve for selective engagement with the connector of the trocar housing when the coupling engages the connector.

In a further embodiment, the ring assembly is operatively associated with the cylindrical body of the coupling. The ring assembly has a flexible arm for manipulating the associated disc to selectively engage the connector of the trocar housing when the coupling engages the connector.

These and other features of the connecting device of the present invention and the manner in which it is made and employed will become more readily apparent to those skilled in the art from the following description of the preferred embodiments of the invention in connection with the following drawings will be.

Those skilled in the art will readily understand how to make and use the coupling assemblies of the present invention without undue experimentation, so that the preferred embodiments will be described in detail below with reference to specific drawings, :
BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a coupling assembly for a triple lumen tube set in accordance with the present invention, showing a coupler and a matching device configured to connect a tube set to a trocar;
2 is an exploded perspective view of the coupler of FIG. 1, showing a number of O (O) -rings and radially opposed latch assemblies;
FIG. 3 is a cross-sectional view taken along line 3-3 of FIG. 1, showing a coupler and a matching device;
4 is a perspective view of a coupler and a matching device attached thereto;
5 is a perspective view of the coupler and registration device, showing the removal of the coupler from the registration device;
Figure 6 is a perspective view of another embodiment of a coupling assembly for a triple lumen tube set, showing a coupler and a mating arrangement;
Figure 7 is an exploded perspective view of the coupler of Figure 6 showing symmetrical flexible tabs of the latch assembly;
Figure 8 is a detail view of the flexible tab of the coupler of Figures 6 and 7;
9 is a perspective view of another embodiment of a coupling assembly for a triple lumen tube set, showing a coupler and a mating arrangement;
Figure 10 is a perspective view of the latch assembly of the coupler of Figure 9;
FIG. 11 is a cross-sectional view taken along line 11-11 of FIG. 9, showing a ratcheting tooth profile of each latch assembly; FIG.
FIG. 12 is a cross-sectional view taken along line 12-12 of FIG. 9, showing the removal of the coupler from the mating device;
13 is a perspective view of another embodiment of a coupling assembly for a triple lumen tube set, showing a coupler and a mating arrangement;
Figure 14 is a perspective view showing the outer sleeve of the coupler of Figure 13 in a proximal position that exposes the flexible fingers arranged in the circumferential direction of the inner sleeve;
15 is a cross-sectional view along line 15-15 of Fig. 14 showing a flexible finger engaging a mating device;
Figure 16 is a side view of a flexible finger of an inner sleeve secured with a post of a mating device;
17 is a perspective view of another embodiment of a coupling assembly for a triple lumen tube set, showing a coupler;
18 is a perspective view of a ring assembly associated with a coupler having a disk with a flexible arm attached thereto;
Figure 19 is a perspective view of the coupler of Figure 17 showing the outer post and two anchors for engagement with the ring assembly;
20 is a perspective view of the coupler and registration device, showing the removal of the coupler from the registration device;
21 is a perspective view of another embodiment of a coupling assembly for a dual lumen tube set, showing a coupler and a matching device;
22 is an exploded perspective view of the coupler of FIG. 21, showing rings and shrouds;
FIG. 23 is a cross-sectional view taken along line 23-23 of FIG. 21 showing the coupled coupler and the engagement between the coupler and the mating device;
24 is a perspective view of another embodiment of a mating assembly for a dual lumen tube set, showing a miter and registration device;
FIG. 25 is an exploded perspective view of the coupler of FIG. 24, showing integrally connected rings and shrouds;
26 is a cross-sectional view taken along line 26-26 of Fig. 24, showing the coupled coupler and the alignment between the coupler and the mating device;
Figure 27 is a perspective view of another embodiment of a mating assembly for use with a single lumen, showing a coupler and mating device;
28 is an exploded perspective view of the coupler of FIG. 27, showing rings and shrouds integrally connected;
29 is a cross-sectional view taken along line 29-29 of FIG. 27, showing the coupled coupler and the alignment between the coupler and the matching device;
30 is a perspective view of another embodiment of a mating assembly for use with a single lumen, showing a coupler and mating device;
31 is an exploded perspective view of the coupling assembly of FIG. 30, showing rings and shrouds;
32 is a cross-sectional view taken along line 32-32 of FIG. 30, showing the coupled coupler and the alignment between the coupler and the matching device;
33 is a perspective view of another embodiment of a mating assembly for use with a single lumen, showing a coupler and mating device;
Figure 34 is an exploded perspective view of the coupling assembly of Figure 33 showing the rotation of the coupler to engage the posts of the mating device within the cam slots;
Figure 35 is a detailed view of the cam slot of the coupler of Figure 34;
Figure 36 is a perspective view of the coupler of Figure 34 showing the post of the mating device fully locked in each cam slot;
Figure 37 is a detail view of the mating device posts in the cam slot of Figure 36;
38 shows another embodiment of a cam slot;
39 illustrates another embodiment of a coupler for use with a single lumen;
40 is a cross-sectional view taken along line 40-40 of FIG. 39, showing a spring wave washer of the coupler body;
41 is a perspective view of another embodiment of a mating assembly for use with a single lumen, showing a coupler having a locking tab for coupling and disengaging the coupler to and from the mating device;
42 is a perspective view of the coupler of FIG. 41, showing a locking tab positioned over an annular lip of the mating device;
Figure 43 is a cross-sectional view along line 43-43 of Figure 41 showing the alignment between the coupler and the mating device;
44 is a perspective view of another embodiment of a coupling assembly for use with a single lumen, showing a coupler and a mating arrangement;
45 is a cross-sectional view of the coupler and registration device shown along lines 45-45 of FIG. 44, showing a coupler having internal threads for engaging external threads of a registration device;
46 is a cross-sectional view of the coupled coupler and registration device of FIG. 44;
Figure 47 is a perspective view of another embodiment of a mating assembly for use with a single lumen, showing a coupler and mating device;
Figure 48 is a cross-sectional view along line 48-48 of Figure 47 showing the rotation of the coupler for engagement with the external threads of the mating device;
Figure 49 is a cross-sectional view of the coupled coupler and registration device of Figure 47;
50 is a perspective view of another embodiment of a mating assembly for use with a single lumen, showing a coupler and mating device;
51 is a cross-sectional view of the coupler shown along line 51-51 in FIG. 50, showing a spring-loaded ring assembly for locking a coupler to a mating device;
Figure 52 is a cross-sectional view of the coupler of Figure 50 illustrating removal of the coupler by pressing the tabs of the ring assembly;
53 is a perspective view of another embodiment of a mating assembly for use with a single lumen, showing a coupler and mating device;
54 is a cross-sectional view taken along line 54-54 of FIG. 53, showing the rotation of the latches of the coupler for engagement with the outer ring of the mating device;
55 is a cross-sectional view of the coupler showing the turning of the latch flex in the post of the mating device;
56 is a cross-sectional view of the coupler showing the latch fully locked to the mating device;
57 is a perspective view of another embodiment of a coupling device for use with a single lumen, showing a coupler and a mating device;
58 is an exploded perspective view of the coupler and registration device of FIG. 57, showing the rotation of the latches of the outer sleeve of the coupler;
59 is a cross-sectional view along line 59-59 of FIG. 57 illustrating the application of pressure to the latch to pivot the locking feature of the latches for engagement with the posts of the mating device;
60 is a cross-sectional view of the latch illustrating the application of pressure to the latch to pivot the locking features of the latch to engage the posts of the mating device;
61 is a perspective view of another embodiment of a coupling device for use with a single lumen, showing a coupler and a matching device;
62 is an exploded perspective view of the coupler and registration device of FIG. 61, showing that the posts of the registration device are locked into the coupler thread to engage the coupler and registration device;
63 is a perspective view of another embodiment of a coupling device for use with a single lumen, showing a coupler and a mating device;
Figure 64 is a cross-sectional view of the coupler along line 64-64 of Figure 63 showing finger tabs on a locking ring mat extending into the thread of the coupler; And
Figure 65 is a perspective view of the coupler of Figure 63 showing the application of pressure on the finger tabs to separate the coupler from the mating device;

Referring to the accompanying drawings, wherein like reference numerals represent like structural features and / or elements of the invention disclosed herein, FIG. 1 illustrates a cross-sectional view of a surgical instrument for detachably connecting a set of tubes to a surgical apparatus constructed in accordance with a preferred embodiment of the present invention. System is shown and is designated by the reference numeral 100.

In the following description, FIGS. 1-20 include couplers and matching devices designed to upgrade current triple-lumen systems, FIGS. 21-65 show dual lumen connectors, FIGS. 27-28 show single lumen coupler features .

I. Triple-lumen binding assembly

1, coupling assembly 100 includes a coupler 200 (not shown) adapted to selectively connect coupler 200 to a connector (matching device) 300 for integration with a surgical device (e.g., trocar) ). The features of the coupler 200 and the matching device 300 described herein can be achieved by, for example, upgrading the current triple-lumen coupler as disclosed in U.S. Patent Application Publication No. 2014/0171855, which is incorporated herein by reference in its entirety It is designed to be backward compatible with current matching devices. The features of the surgical device contemplated for use with the coupler 200 are not described in detail herein, as they are described in greater detail in U.S. Patent No. 7,854,724, which is incorporated herein by reference.

Referring to Figures 1-4, coupler 200 includes an elongated generally cylindrical body 214 having an opposing distal end 214a and a proximal end 214b. Coupler body 214 is connected directly to the universal filter via a triple-lumen tube 204 through parallel tube components. The distal end 214a of the coupler body 214 includes a plurality of flow paths defined by four concentric annular walls. More specifically, the distal end 214a of the coupler body 214 includes a central channel 222 defined by an inner annular wall 232, a central channel 222 defined between the intermediate annular wall 234 and the inner annular wall 232, An intermediate flow path 224 and an outer flow path 226 defined between the outer annular wall 236 and the intermediate annular wall 234.

Rings are positioned within the grooves on each annular wall to match the luer part 322 (shown in Fig. 3) of the matching device 300. The o- When fully assembled, the luer part 322 is a coaxial flow path that coincides with the annular walls 232, 234, 236 and the flow paths 222, 224, 226 of the coupler 200. The O-rings still provide backward compatibility with all existing products on the market and increase the manufacturability of the coupler 200 to engage the luer part 322 of the coupling device 300 without the need for additional luer . As shown in FIG. 2, the first O-ring 242 is located in the groove 252 outside the inner annular wall 234. Similarly, the second O (O) -ring 244 is located in a groove 254 external to the intermediate annular wall 234 and the third O (O) And is located in the groove 256 outside the wall 236.

With continued reference to FIGS. 1-3, the coupler body 214 includes several symmetrical features for coupling the coupler 200 with the mating device 300. The symmetrical features include two diametrically opposed latch assemblies including latches 262, 264 and caps 272, 274. The two springs 282 and 284 allow the latches 262 and 264 to be spring-loaded and easily manipulated by the mating device 300. The latches 262, 264 are semicircular housings located on the distal end 214a of the coupler body 214.

Each latch 262 and 264 includes two outwardly extending parallel extensions 262a, 262b, 264a, and 264b that slidably engage within a slot 268 of the coupler body 214. As shown in Fig. 4, when assembled, the extensions are juxtaposed in the slots such that the extensions 264a, 264b are inside the extensions 262a, 262b, respectively. Each latch 262, 264 also includes locking features 283, 285 that completely surround the annular walls and the mating device when the coupler 200 is engaged with the mating device 300. The ends 283a, 283b, 285a and 285b of the locking features 283 and 285 are adjacent to each other when the coupler 200 and the matching device 300 are engaged. In other words, the ends 283a and 285a are adjacent to each other, and the ends 283b and 285b are adjacent to each other when fully assembled. Each locking feature 283 and 285 also includes cam surfaces 292 and 294 that engage the outer surface 314 of the mating device to maintain the coupler 200 in place.

The caps 272 and 274 are designed to be in close contact with the latches 262 and 264 while operating the springs 280 and 282. [ Each of the caps 272 and 274 has a notch with posts 272c, 272d, 274c and 274d engaging with the holes 262c, 262d, 264c and 264d of the respective extensions 262a, 262b, 264a and 264b. (272a, 272b, 274a, 274b). For example, as shown in FIG. 4, the extension 264a is located within the notch 272a of the cap 272 having a post 272c in the hole 264c. Each cap further includes spring pockets 272e and 274e to include springs 282 and 284 between the caps 272 and 274 and the corresponding spring holes 293 and 295 of the coupler body 214.

4 and 5, the coupler 200 and the matching device 300 can be easily combined by simply pushing the coupler 300 against the radially outwardly extending posts 312 of the matching device 300. More specifically, the cam surfaces 292 and 294 are pushed up against the posts 312 so that the O-rings 242, 244 and 246 begin to engage the luer part 322 of the mating device 300 . Continuing pushing the coupler 200 toward the mating device 300 begins to cam up the locking features 283 and 285 and moves over the posts 312 and onto the mating device 300. Once the coupler 200 is fully pushed over the mating device 300, the cam surfaces 292, 294 are locked into a position that rests against the surface 314 of the mating device 300.

The ends 283a, 283b, 285a, 285b are adjacent such that the latches 262, 264 completely surround a portion of the mating device 300. At this point, if the tubing 204 is twisted, the coupler 200 may be bent around the mating device 300 and may not separate.

5, the coupler 200 can be easily removed from the mating device 300 by pressing the spring pockets 272e, 274e to press the springs 282, 284 and disengage the locking features 283, . More specifically, as the springs 282 and 284 are pressed, the locking features 283 and 285 begin to separate. This eventually allows the ends 283a and 285b to be pulled together. Once the locking features 283 and 285 are disconnected, the coupler 200 can be removed from the mating device 300 by pulling the coupler 200 away from the mating device 300.

Other embodiments of the mating assembly are shown and described. Coupler and registration devices, as described in detail below, include features similar to coupler 200 and registration device 300, and are therefore represented by like reference numerals to identify similar features and are not described in further detail below.

6 through 8, another embodiment of the coupling assembly 600 includes a cap (not shown) having flexible tabs 796 and 798 that engage the mating device 800 to secure the coupler 700 in place 772, < RTI ID = 0.0 > 774, < / RTI > More specifically, the flexible tabs 796 and 798 extend outward from the caps 772 and 774 in a generally "V" ' ' shape when the coupler 700 and the mating device 800 are disassembled, And adjacent each flat surface 776, 778 of the body 614.

The flexible tabs 796 and 798 are detached or bent from the coupler body 714 when the coupler body 714 contacts the posts 812 as the coupler body 714 is pushed upwardly toward the mating device 800. [ The ends 783a, 785a and 783b and 785b are spaced apart from one another so that the coupler 700 can be pushed over the posts 812 and the flexible tabs 796 and 798 are pushed over the posts 812, Is fixed along surface 814. The coupler body 714 is released from the mating device 800 by pressing the caps 772 and 774 so that the flexible tabs 796 and 798 separate the ends 783a and 785a and 783b, Allowing it to move away from or to separate from the mating device.

9-12, there is shown an alternative embodiment of a coupling assembly 900 having a coupler 1000 with cantilever arms 1072, 1074 extending from symmetrical latches 1062, 1064, respectively. Latches 1062 and 1064 each include extensions 1062a, 1062b, 1064a, and 1064b that slidably engage coupler body 1014 through opening 1068. [ Two openings 1068 are shown in Fig. 9 to accommodate the extensions 1062a and 1064a. Each of the extensions 1062a, 1062b, 1064a, 1064b includes ratchet teeth 1062c, 1062d, 1064c, 1064d that lock latches 1062, 1064 together. For example, as shown in FIG. 11, the ratchet teeth 1062c and 1064c are locked together when the latches 1062 and 1064 are in the locked position.

Cantilever arms 1072 and 1074 extend from the latches 1062 and 1064 toward the center and serve as fulcrums for removing the coupler body 1014 from the mating device 1100. [ To couple coupler 1000 with mating device 1100, coupler 1000 includes a cam surface 1092,1094 on latches 1062,1064 until the cam surface is locked onto surface 1114 of mating device 1100. [ Is pushed over the mating device 1100 until it is pushed. To remove the cantilever arms 1072 and 1074 (as shown in Figure 12), the ratchet teeth 1062c, 1062d, 1064c and 1064d are released and the ends 1083a and 1085a The ends 1083b and 1085b separate the locking features 1083 and 108S so that the coupler 1000 can be pulled from the mating device 1100. [

13-15 illustrate another embodiment of the coupling assembly 1300. As shown in FIG. Coupler body 1414 includes a spring-loaded outer sleeve 1462 that surrounds inner sleeve 1464. Inner sleeve 1464 includes a plurality of circumferentially-disposed, flexible (e.g., flexible) materials surrounding annular walls 1432, 1434, 1436, O- rings 1442, 1444, 1446 and flow passages 1422, 1434 Finger 1464a. An annular groove 1475 (shown in Fig. 15) is included in the distal end 1414a of the coupler body 1414 that locks the inner sleeve 1464 together with the coupler body 1414. [ When the outer sleeve 1462 is in the distal position (shown in FIG. 13), the inner sleeve 1464 is secured therein and the flexible finger 1464a is in the locked position. The flange 1465 of the coupler body 1414 maintains at least one spring 1466 in position between the coupler body 1414 and the outer sleeve 1462.

The handles 1476 and 1478 of the outer sleeve 1462 are pulled toward the center to expose the flexible fingers 1464a (shown in Figure 14) to engage the coupler 1400 with the mating device 1500, . The coupler 1400 is then pushed over the mating device 1500 until the hooked portion 1464c of the flexible finger 1464a is secured on the post 1512 and the camming surface 1464b on the flexible finger 1464a Is camed up over post 1512 (best seen in Figure 16). Outer sleeve 1462 is disengaged away to cover inner sleeve 1464 again and secure flexible finger 1464a. The outer sleeve 1462 is pulled to the central position and the flexible finger 1464a is exposed to allow the coupler 1400 to be pulled out of the mating device 1500. [

17-20 illustrate additional embodiments of coupling assembly 1700 having coupler 1800 and matching device 1900. [ 18 shows a ring assembly 1816 that locks with the coupler body 1814 and maintains a hermetic seal. The ring assembly 1816 includes a disk 1818 and an arm 1820 that extends vertically outward from the disk 1818. The coupler body 1814 includes an outer post 1832 and two anchors 1834 which engage with the arm 1820 to prevent the disk 1818 from moving linearly towards the mating device 1900 And allows vertical movement of the disc 1818 relative to the coupler body 1814.

Coupler body 1814 includes an annular outer groove 1827 (shown in FIG. 19) and a disc 1818 (shown in FIG. 19) to securely hold disc 1818 in place. (E.g., notches and grooves) corresponding to the associated feature 1825 of the first feature 1818. [ The arm 1820 extends generally from the disk 1818 and has a generally "L" shaped opening 1846 attached to an anchor 1834 of the coupler body 1818 when the arm 1820 is in the press position. . 18, the flexible tab 1823 is disposed within the arm 1820 and mates with the posts 1832 of the coupler body 1814 when in the uncompressed position.

Coupler 1800 may be configured such that the cam surface 1892 (shown in Figure 20) on disk 1818 rises above registration device post 1912 and moves disk 1818 to surface 1914 of registration device 1900 And is pushed into the registration device 1900 until it is fixed. In this position, the coupler 1800 can rotate around the matching device 1900 as the tube 1804 is deflected from the filter. As shown in Figure 20, pressing the arm 1820 pushes the flexible tab 1823 against the anchor 1832 to loosen the cam surface 1892 from the mating surface. The coupler may be pulled from the mating device.

Π. Dual lumen binding assembly

21-23 illustrate a coupling assembly 2100 with a matching device 2300 having dual lumen coupler 2200 and dual luer 2322 features. Coupler 2200 includes a ring 2252 and a connector 2256 coupled to shroud 2254. Ring 2252 and shroud 2256 are linearly aligned with elongated generally cylindrical body 2214 of connector 2256. The connector body 2214 includes a proximal end portion 2214a and an opposing end portion 2214b that engages the shroud 2254 and the ring 2252 and engages the luer part 2322 of the coupling device 2300. [ Connector 2256 includes two concentric annular walls on the distal end that allow two flow paths. Specifically, the inner annular wall 2232 defines an inner flow path 2222 defined by the inner annular wall 2232 and defines an outer flow path 2232 between the inner annular wall 2232 and the outer annular wall 2234 2224 are limited.

22 and 23, the ring 2252 couples the connector 2256 and the shroud 2254 to the mating device 2300 via an internal screw 2262 that is rotatably engaged with the mating device 2300 . Ring 2252 includes a tab 2264 that snaps into slot 2266 of connector 2256 to limit rotational movement therebetween. The ring 2252 further includes a flexible finger 2272 that engages the ramp 2258 of the shroud 2254. To attach the coupled coupler 2200 to the mating device 2300, the user rotates the shroud 2254 first. The rotation of the shroud 2254 causes the screws 2262 of the ring 2252 to engage and secure with the posts 2312 of the mating device 2300. The shroud ramp 2258 contacts the flexible finger 2272 of the ring 2252 and the flexible finger 2272 releases the ramp 2258 and the luer 2322 into an annular shape And firmly secured to the walls 2232 and 2234. To detach, the user reverses the shroud 2254 to release the screw 2262 of the ring 2252 from the post 2312 of the mating device 2300.

The coupling assembly 2400 of Figs. 24-26 is another embodiment of a coupling assembly 2400 directed to the dual lumen coupler 2500. Fig. In this embodiment, the ring 2552 and the shroud 2554 are integrally coupled to a single shroud assembly 2558. The shroud assembly 2558 includes a linear snap feature 2564 (similar to 2264) for attaching the shroud assembly 2558 to the connector 2556 and an internal screw 2562 (similar to screw 2262) ). In order to attach the coupler 2500 to the registration device 2600, the posts 2612 of the registration device are aligned with the internal threads 2562. The shroud assembly 2558 is rotated until the annular walls 2532 and 2534 of the connector and the luer 2622 of the mating device 2600 are attached.

Ⅲ. Single lumen binding assembly

27-29 illustrate a coupling assembly 2700 similar to the coupling assembly 240 of Figures 24-26 but the connector 2800 directs a single lumen and the matching device 2900 directs a single luer 2922, . In this embodiment, the distal end 2814a of the connector body 2814 includes one annular wall 2832 and one flow path 2822. In this embodiment, The design of ring 2825 and shroud 2854 is identical to ring 2552 and shroud 2554 through ring 2825 and shroud 2854 integrally connected to form a shroud assembly 2858. Shroud assembly 2858 has internal threads 2862 that engage posts 2912 of matching device 2900 and a linear snap feature 2864 that engages distal end 2814a of the connector. The shroud assembly 2858 is rotated until the internal thread 2862 engages the mating device 2900 and the annular wall 2832 and the lute 2922 are fitted together.

30-32 illustrate a coupling assembly 3000 similar to coupling assembly 2100 but the connector 3100 is directed to a single channel 3132 with one annular wall 3134 and the matching device is a single Luer < / RTI > Ring 3152 is attached to connector 3156 by snap feature 3164 to lock the rotation of connector 3156. [ The ring also has a flexible finger 3172 that can be engaged over the ramp feature 3158 in the shroud 3154. [ Coupler 3100 engages mating device 3200 in a manner similar to coupler 2200 and internal screw 3162 that is locked with post 3212 when rotational motion is applied to shroud 3154. [

33-37, a coupling assembly 3300 having a coupler 3400 and a mating device 3500 is shown. The coupler 3400 has a generally cylindrical body 3414 having a proximal end 3414a that engages a single lumen tube 34014 and a distal end 3414b that engages the mating device 3500. [ Coupler body 3414 includes a single annular wall 3432 having a flow path 3422. [ The inner diameter of the annular wall 3432 is larger than the tube 3404 to help the tube 3404 securely fit within the flow path 3422 to facilitate smooth gas flow. Similarly, the inner diameter of the annular wall 3432 is dimensioned to conform to the outer surface of the mating device 3500 such that it fits securely into the flow path 3422, such as engaging the O-ring 3412 located within the coupler body 3414. [ Diameter.

The distal end 3414b of the coupler body 3414 includes a plurality of cam slots 3542 for engaging the posts 3512 of the mating device 3500. Post 3512 has a generally flat surface 3512a that engages a corresponding flat end 3542a of cam slot 3542. [ However, the geometric deformation of the post, such as the circular post, is also considered. Further, other embodiments of the coupler and registration device may include a change in the number of posts and a corresponding cam slot.

In order to attach the coupler 3400 to the matching device 3500, the matching device 3500 is first inserted into the flow path 3422 with the cam slots 3542 and the posts 3512 aligned. The matching device 3500 is pushed through the flow path 3422 until the outer wall of the matching device 3500 makes contact with the O (O) -ring 3412. Continuous pressurization of the mating device 3500 into the coupler 3400 will begin pushing the post 3512 into the cam slot 3512. Coupler 3400 rotates with constant pressure so that post 3512 is fully rotated within cam slot 3542 and post 3512 is in the locked position with cam slot 3542 (shown in Figures 36 and 37) do. In the locked position, the coupler 3400 will resist pulling or loosening until it is removed.

The coupler 3400 and the mating device 3500 are pushed back toward each other and are reversed to direct the posts 3512 towards the respective cam slots 3542. [ This movement will separate the posts 3512 from the cam slots 3542 and the coupler 3400 and the mating device 3500 will pull together. As shown in FIGS. 33-37, the cam slot 3542 has a generally "U" -shaped shape for locking the post therein. However, other similar designs may be used. For example, as shown in FIG. 38, another design for the cam slot 3842 is shown. The design intent for the coupler body 3814 is that the cam slot 3842 directs the post to the end of the cam slot 3842b such that the user pushes the coupler body 3814 back toward the mating device 3500, Will be limited from being pulled or rotated until it starts.

Fig. 39 shows another embodiment of the coupler 3900. Fig. The coupler 3900 is similar to the coupler 3400 in that it is designed for a single lumen tube 3904 and includes a cam slot 3942 along the distal end 3914b of the coupler body 3914. [ Coupler 3900 includes a compression spring 3952 located within coupler body 3914 proximal to O (O) -ring 3946. The compression spring is shown as a wave washer 3952 that is engaged with a mating device (e. G., A post 3512) when the post (e. G., Post 3512) is in the locked position (shown in FIG. 37) Matching device 3500) and creates a spring load resistance for coupler removal.

Figures 41 and 42 illustrate another embodiment of a coupling assembly 4100 that includes a coupler 4200 and a mating device 4300. [ Coupler 4200 includes an O-ring 4212 for securing and sealing coupler 4300 to coupler 4200. In this embodiment, the inner diameter of the matching device 4300 is greater than the inner diameter of the tube 4204 to aid gas flow. Another alternative embodiment would be the same inner diameter for the tube and the matching device, similar to the coupling assembly 3300 shown in FIG.

42, the distal end 4214b of the coupler body 4214 is generally conical with at least two flexible tabs 4276, 4278 extending from the outer projection 4274. As shown in Fig. End portion 4214b further includes an outer ridge portion 4268 for manipulating tabs 4276 and 4278. [ The distal end 4314b of the die matching device has an outer diameter greater than the proximal end 4314a and includes an annular lip 4328. [ The ramp features 4326 guide the flexible tabs 4276 and 4278 towards the annular ribs 4328. As the user pushes the coupler 4200 toward the coupling device 4300, the flexible tabs 4276 and 4278 are bent outward along the ramp feature 3526 and the coupler 4200 is coupled to the mating device 4300 Fastened over the anchoring lip 4328. To remove it, the user squeezes the outer ridge 4268 to inflate the flex tabs 4276, 4278 away from the lip 4328 and pulls the coupler 4200 from the mating device 4300.

Figures 44-49 illustrate coupling assemblies 4400 and 4700 having couplers 4500 and 4800 and matching devices 4600 and 4800 using screws to both couplers 4500 and 4800 and to matching devices 4600 and 4800. [ ≪ / RTI > 44 and 45, the coupler 4500 has an interior 4532 and an external sleeve 4534. The outer sleeve 4534 includes a flexible feature 4572 that snaps onto the corresponding feature 4556 of the inner sleeve 4532 during assembly. 45, the outer sleeve is disposed adjacent the inner sleeve 4532 and includes a flexible tab 4556 that rests on a ledge 4556 to prevent linear movement of the outer sleeve 4534. For example, as shown in FIG. 45, (4572). Inner sleeve 4532 is fixed relative to lumen 4504 and outer sleeve 4534 is free to rotate.

45, an O-ring 4512 is secured around the inner sleeve 4532 to seal the coupler 4500 to the mating device 4600. As shown in FIG. The outer sleeve 4534 includes internal threads 4542 that engage external threads 4652 of the registration device 4600. Simply aligning the outer sleeve 4534 with the registration device 4600 and rotating the registration device 4600 into the outer sleeve 4534 causes the coupler 4500 to engage closely with the registration device 4600. This embodiment is designed not to rotate when the tube itself is installed. 45, the outer diameter of the tube 4504 is smaller than the Luer part of the matching device 4600, but may be the same as shown in the previous embodiment.

The coupling assembly 4700 shown in FIGS. 47-49 also includes a coupler 4800 having an inner sleeve 4832 and an outer sleeve 4834. The inner sleeve 4832 remains static with respect to the tubing 4804. The outer sleeve 4834 includes a tongue 4836 and an annular groove feature 4838 that linearly positions the outer sleeve 4834 to the inner sleeve 4832 but freely rotates the outer sleeve 4834 To the inner sleeve 4832. As shown in FIG. O (O) rings 4514 are disposed between inner and outer sleeves 4832 and 4834 for sealing. Similar to the outer sleeve 4534, the outer sleeve 4834 has an internal thread and an O-ring 4512 for engaging and sealing with the external thread 49S2 of the mating device 4900. [

Referring to Figs. 50-52, another embodiment of coupling assembly 5000 is shown. In this embodiment, the ring assembly is located at the distal end 5114b of the coupler 5100. More specifically, the ring assembly includes a ring 5142 that is partially disposed within the coupler body 5114 surrounding the annular wall 5132. An external spring-loaded tab 5152 extends from ring 5142 toward the proximal end of the base so that the ring 5142 can be bent around the post 5212 of the registration device 5200 to engage it. 51, the tab 5152 includes a spring pocket 5144 for receiving a spring 5146 between the tab 5152 and the coupler body 5114. As shown in Fig. The tab 5152 has a generally hooked feature engaging the opening 5162 of the coupler body 5114.

Coupler 5100 is pushed over registration device 5200 such that cam surface 5172 of ring 5142 contacts post 5212 of registration device 5200. In this way, Subsequent pressure causes compression of the spring 5146 causing the ring 5142 to bend over the post 5212. Once fully assembled, the cam surface 5172 of the ring 5142 lies along the outer surface 5214 of the registration device 5200. The pressure on the tab 5152 (shown in FIG. 52) causes the ring 5142 to bend, allowing the coupler 5100 to be pulled out of the registration device 5200. The embodiment shown in Figure 50 shows a rounded post for securing the ring to the mating device, but other similar configurations, such as ring lip (e.g., as shown on the mating device 5500 of Figure 53) Can be used.

Figures 53-56 illustrate another embodiment of a coupling assembly 5300 including a coupler 5400 having a pivoting latch 5442. The coupling assembly 5300 includes a pivoting latch 5442, In this embodiment, inner sleeve 5432 is integrally connected to tube 5404. The latch 5442 is located between the inner sleeve 5432 and the outer sleeve 5452. The inner sleeve 5432 includes a flange 5434 that acts as a pivot point and prevents the latch 5442 from moving linearly toward the registration device 5500. The outer sleeve 5452 also has a flexible tab 5454 that holds the latch 5442 in the home or closed position.

The latch 5442 includes a locking feature 5444 that engages an outer ring (or lip) 5512 on the mating device 5500. To assemble, the user pivots the latch 5442 and pivots the locking feature 5444 away from the inner sleeve 5432 to the open position. Pushing the coupler 5400 towards the coupling device 5500 pushes the locking feature 5444 up the outer ring 5512 (shown in FIG. 55). When the latch 5442 is released, the flex tab 5454 rotates the latch 5442 back to the closed position and locks the latch 5442 such that the locking feature 5444 is positioned along the surface 5514 of the mating device (Shown in FIG. 56).

To remove, the user depresses the latch 5442 and releases the locking feature 5444 from the outer ring 5512 and pulls the coupler 5400 from the registration device 5500. Other embodiments of this design include latches that are open during camming against the mating device when the coupler and mating device are urged together so that the locking feature can be automatically locked without the need to press the latches.

FIGS. 57-60 illustrate another embodiment of a coupling assembly 5700 similar to coupling assembly 5300. FIG. In this embodiment, the latch 5842 extends from a flexible ring 5844 that snaps into the outer sleeve 5852 and pivots about the outer sleeve 5852. The outer sleeve 5852 is fitted over the inner sleeve 5832 with an inner sleeve 5832 that includes a flange 5834 to prevent movement of the outer sleeve 5852. [ By pressing and releasing the latch 5842, the ring 5844 can be released to be deflected outwardly on the post 5912 (shown in FIG. 60) or pulled from the coupling device 5900. This design can be used by either pivoting the latch (as shown) or by automatically camming and opening the latch while engaging the posts of the mating device.

Figures 61 and 62 illustrate another embodiment of a coupling assembly 6100 having a stationary ring 6242 and a rotating ring 6252. [ The retaining ring 6242 is connected to the tubing 6204 and the rotating ring 6252 has an internal screw 6254 (shown in FIG. 62) that engages the engaging device 6300. The screw 6254 includes a locking feature 6256 that secures the rotating ring 6252 to the posts 6312 of the registration device 6300 when fully assembled. In order to couple coupler 6200 to matching device 6300, the user rotates rotating ring 6252 over matching device post 6312. The posts 6312 engage the locking feature 6256 to secure the coupler 6200 thereto. The user simply reverses the rotating ring 6252 to release the post 6312 from the locking feature 6256 and pull the coupler 6200 away from the registration device 6300. [

63 to 65 show another embodiment of the coupler.

This design includes an outer sleeve 6432 located on a coupler body (not shown for clarity) having a locking ring 6442. [ 64, the locking ring 6442 has a flexible tab 6454 extending through a slot 6456 of the internal thread 6452 in the outer sleeve 6432. As shown in FIG. The flex tab 6454 contacts the posts 6512 of the registration device 6500 and is bent over the post 6512 with a constant pressure to secure the coupler in place All. The user presses the finger tab 6444 on the locking ring 6442 which allows the flexible tab 6454 to be lifted from the post 6512 and the coupler to be unscrewed away from the mating device 6500 .

While the present invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes and / or modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. It is easy to see that it is possible.

Claims (21)

A coupling device for connecting a set of tubes to a trocar,
a) a multi-lumen trocar with a housing comprising a connector, the connector extending outwardly from the housing and having a plurality of concentric flow channels defined therein by a plurality of concentric annular walls;
b) a multi-lumen tube set comprising a plurality of tubes arranged in parallel;
c) a coupling including a generally cylindrical body having a first end and a second end, the first end being configured to selectively engage the coaxial flow channels of the connector of the trocar, A tube set of tubes; And
d) a latch assembly associated with the cylindrical body of the coupling to selectively engage the connector of the trocar housing when the coupling engages the connector;
≪ / RTI > 2. The connector of claim 1, wherein the first end of the coupling body includes a plurality of concentric annular walls for engaging the connector of the trocar, each outer wall being surrounded by an O-ring seal And wherein the coupling device comprises: 3. The coupling device of claim 2, wherein the second end of the coupling body includes a plurality of parallel tube components for coupling with the tubes of the tube set. 4. The coupling device according to claim 3, wherein the first end of the body of the coupling includes an inner passage, an intermediate passage surrounding the inner passage, and an outer passage surrounding the intermediate passage. 5. The apparatus of claim 4, wherein the second end of the body of the coupling includes a first tube component that communicates with the internal flow path at the first end of the body, a second tube component that communicates with the intermediate flow path at the first end of the body And a third tube component communicating with the outer flow path at the first end of the body. The coupling device of claim 1, wherein a plurality of circumferentially spaced, radially outwardly extending posts are provided on an outer wall of the connector of the trocar. 7. The connector assembly of claim 6, wherein the latch assembly includes a pair of radially opposed spring mounted latches for selectively engaging the plurality of posts at an outer wall of the connector of the trocar housing when the coupling engages the connector. Wherein the coupling device comprises: A coupling device for connecting a set of tubes to a trocar,
a) a multi-lumen trocar with a generally cylindrical connector and a housing including a plurality of circumferentially spaced apart radially outwardly extending posts on an outer wall of the connector, the connector extending outwardly from the housing and having a plurality of concentric Having a plurality of coaxial flow paths defined therein by annular walls;
b) a multi-lumen tube set comprising a plurality of tubes arranged in parallel;
c) a coupling including a generally cylindrical body having a first end and a second end, the first end being configured to selectively engage the coaxial flow channels of the connector of the trocar, To attach to the parallel tubes of a set of tubes; And
d) a pair of diametrically opposed latches, cooperatively associated with the cylindrical body of the coupling, for selectively engaging the plurality of posts in the outer wall of the connector when the coupling engages the connector, A latch assembly;
≪ / RTI > 9. The connector of claim 8 wherein the first end of the body of the coupling includes a plurality of concentric annular walls for engaging the connector of the trocar, ) ≪ / RTI > ring seal. 10. The coupling device of claim 9, wherein the second end of the body of the coupling includes a plurality of parallel tube components for engaging the tubes of the tube set. 2. The combination device of claim 1 wherein each latch of the latch assembly includes an outwardly extending parallel extension that slidably engages within an opening in the cylindrical body and engages an opposing latch. 12. The combination device of claim 11, wherein each extension comprises an aperture that engages a corresponding post of the opposing latch. 12. The combination device of claim 11, wherein each extension comprises a ratcheting tooth shape engaging a ratcheting tooth shape of the extension on the opposite latch. A coupling device for connecting a set of tubes to a trocar,
a) a multi-lumen trocar with a housing including a connector extending outwardly from the housing, the connector having a plurality of coaxial channels defined therein by a plurality of concentric annular walls;
b) a multi-lumen tube set comprising a plurality of tubes arranged in parallel; And
c) a coupling including a generally cylindrical body having a first end and a second end, the first end being configured to selectively engage the coaxial flow channels of the connector of the trocar, The first end of the body of the coupling comprising a plurality of concentric annular walls for engaging the connector of the trocar, each outer wall being adapted to attach to the parallel tubes of the tube set, Surrounded by an O (O) ring seal;
≪ / RTI > 15. The combination of claim 14, further comprising a latch assembly associated with the cylindrical body of the coupling to selectively engage the connector of the trocar when the coupling engages the connector. Device. 16. The combination device of claim 15, wherein a plurality of circumferentially spaced, radially outwardly extending posts are provided on an outer wall of the connector of the trocar. 17. The connector of claim 16, wherein the latch assembly includes a pair of radially opposed spring mounted latches for selectively engaging the plurality of posts at an outer wall of the connector of the trocar housing when the coupling engages the connector. Wherein the coupling device comprises: 18. The method of claim 17 wherein each of the latch assemblies and springs located between the cylindrical bodies directs parallel extensions extending outwardly of each latch assembly to engage and separate from the connector and the coupling Characterized by a coupling device. 15. The coupling device of claim 14, wherein each O (O) -ring seal is located within an annular groove formed in the outer wall associated therewith. 15. The surgical instrument of claim 14, further comprising an outer sleeve and an inner sleeve operatively connected to the cylindrical body of the coupling, wherein axial movement of the outer sleeve is achieved when the coupling is engaged with the connector, And exposes a plurality of circumferentially arranged flexible fingers on the lead surface of the inner sleeve for selective engagement with the connector. 15. The connector of claim 14, further comprising a flexible arm operatively associated with the cylindrical body of the coupling having a flexible arm for manipulating an associated disc for selective engagement with the connector of the trocar when the coupling engages the connector. ≪ / RTI > further comprising a ring assembly.

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